Crossover Error Rate
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Crossover Error Rate Graph
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Other Computer Software What Is a Crossover Error Rate CER? What Is a Crossover Error Rate CER? http://www.ehow.com/info_12173088_crossover-error-rate-cer.html By Dan Howard eHow Contributor Dan Howard Follow Pin Share Tweet Share Email Save Burke/Triolo Productions/Brand X Pictures/Getty Images Each time https://www.skillset.com/questions/crossover-error-rate-is-generally-expressed-as you type in a password on your computer or swipe a credit card or employee identification badge, the information passes through a security verification system. Although error rate these systems are highly accurate, it is impossible to create a system that is completely accurate. Crossover error rate, or CER, is measurement that quantifies the error rate in an authentication system. Authentication Errors Two types of errors can occur when determining the authenticity of an attempt to access an information or over error rate security verification system. A false acceptance error occurs when a system incorrectly accepts bad authentication information. A false rejection error occurs when a transaction that has appropriate credentials is incorrectly rejected. System Design Even in optimal circumstances, it is impossible to design an authentication system that eliminates both false acceptances and false rejections. Rather, the levels of false acceptance or rejection are governed by the sensitivity of the system. The correlation between false acceptance rates and false rejection rates is always negative; that is, as false rejection rates diminish, false acceptance rates go up. System designers are tasked with figuring out the appropriate false acceptance and false rejection rates for each system they design. CER Definition Crossover error rate is defined as the sensitivity calibration point at which an authentication system design has an identical false acceptance rate and false rejection rate. If you plot false acceptance and false rejection rates at diffe
questions Detailed explanations Peer reviewed answers for better understanding Crossover Error rate is generally expressed as: FRR>FAR FRR=FAR FRR